Billy T Shirt Pattern | Children’s Sizes 3–12 | Adaptive T shirt for kids

The Billy T Shirt is an easy sewing pattern for children’s T shirts, available in sizes 3 to 12 years. This pattern has been specially designed for comfort, with the seams placed on the outside so nothing rubs or irritates against the skin. It’s a great choice for children who are sensitive to clothing, as well as for anyone who loves soft, wearable basics.

The Billy works with any light- to medium-weight jersey fabric,and is an ideal project for beginners learning to sew with knits. The smaller sizes are perfect for recycling adult T shirts into something new — a wonderful way to give old favourites a second life.

You can keep the T shirt plain and classic, or add extra personality with an iron-on design or motif. Search on the web for “DTF iron-on motif” to find plenty of options and make each Billy T Shirt truly unique.

Why You’ll Love This Pattern

• Ages 3–12 years included in one pattern

• Comfort-first design with flat seams to reduce irritation on sensitive skin

• Suitable as everyday or school wear for children with sensory needs

• Works beautifully with stretch jersey fabrics — ideal for sensory comfort

• Adaptive design for ease of dressing – gentle neckline, no bulky trims

• A quick make for beginners and experienced sewists alike

• Upcycling-friendly — turn old T shirts into new ones

• Customisable with motifs and transfers

• Comprehensive instructions with photos included
• Print at Home, Copy Shop version and Projector File all included in the download

A Wardrobe Essential

This is the kind of T shirt your child will reach for every day — easy to wear, comfortable against the skin, and simple to sew. The Billy T Shirt pattern is a versatile staple that works for school, play, and layering.

Available as an instant digital download so you can start sewing straight away.

Skill Level

Enthusiastic: This pattern is suitable for someone who has made a few beginner projects and is keen to learn more.

For more details click on the ‘Details’ and ‘Tech Specs’ tabs.

Adaptive Clothing for Kids / Sensory Clothing / Autism Clothing